View of colourful rock formations at the Zhangye Danxia Landform Geological Park in Gansu Province, China. The Zhangye Danxia Landform Geological Park is from Zhangye city. The park spans more than 400 square kilometers in Gansu. The unusual .
Cucumber tree - found only on Socotra Island, Yemen. The island is very isolated and through the process of speciation, a third of its plant life is found nowhere else on the planet. It has been described as the most alien-looking place on Earth.
Three Sisters Volcano, Oregon, USA - This volcano in the Cascade Range gets its name from its three joint peaks. The peaks are nicknamed Faith (to the north), Hope (in the middle), and Charity (to the south).
Valentine's People walk past a cave at Apostle Islands National Lakeshore in northern Wisconsin. The caves are usually accessible only by water, but Lake Superior’s rock-solid ice cover is letting people walk to them for the first time since